Updraft-kiln.



PATENTBD JAN. 2, 1906.

E. A. KING.

UPD'RAFT KILN.

APPLICATION FILED JUNE 5, 1905.

3 SHEETS-SHEET 1.

PATENTED JAN. 2, 1906. E. A. KING.

UPDRAFT KILN.

APPLICATION FILED JUNE 5, 1905 3 SHEETS-SHEET 2. L..

Ju m g No. 808,847. PATENTED JAN. 2, 1906. E. A. KING;

UPDRAFT KILN.

APPLICATION FILED JUNE 5, 1905. s snnms-snnm a.

UNITED STATES EDWIN A. KING,

OF PHILADELPHIA, PENNSYLVANIA.

UPDRAFT-KILN.

Application filed June 5,

Specification of Letters Patent.

1905. Serial No. 263,790-

Patented Jan. 2, 1906.

To all whom, it may concern:

Be it known that I, EDWIN A. KING, a citizen of the United States, residing at the city of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new and useful Improvements in Updraft-Kilns, of which the following is a Specification.

My invention has relation to updraft-kilns, and in such connection it relates more particularly to the construction and arrangement of flues in the floor or kiln-seat of such kilns to permit after the brick have been burned therein of the utilization of the heat retained in the brick for drying or other purposes. Heretofore the heat remaining in the burned brick of updraft-kilns was permitted to go to waste, owing to the inability to withdraw the same from the brick.

The principal objects of my invention are, first, to overcome the above-mentioned disadvantage of updraft kilns and to rovide fiues in the floor of the same, if suc kilns have permanent walls, or to provide permanent flues in a kiln-seat, which becomes a kiln by the building of temporary walls thereon, as is the case in scoved or cased-up kilns, and to arrange the fines underneath and opposite the benches of brick, so as to be completely covered by the same; second, to provide lines in certain of the walls of the kiln, which by being connected with the floorflues form the continuation thereof and permit of the withdrawal of the heat from the sides and top of the brick in the kiln; third,- to provide each of said fines with a damper to render the same inoperative, when required, to prevent aninflow of cold airinto the fines and their wall extensions and from the same into the brick during the burning thereof and to permit when the burning has been completed of withdrawal of the heat from the brick; fourth, to provide a main flue which connects the floor-flues with each other at one end and which permits of the collection of the heat from each of the floor-fines and their extensions and of the conducting of the same to any place desired, and,fifth, to provide the main flue with air exhausting means to facilitate the withdrawal of the heat from the brick and for forcing the same to the place of utilization.

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, III

Figure 1 is a view illustrating in top or plan a kiln seat or floor with the flues arrange therein and air-exhausting means therefor and also illustrating in horizontal section the walls and furnaces surrounding the floor and forming in conjunction therewith an updraftkiln and a main flue, into which the floor-flues terminate and with which the exhausting means are connected, all embodying main features of my present invention. Fig. 2 is a longitudinal sectional view taken on the line :0 a; of Fig. 1 and illustrating the fines extending to the level of the floor or kiln-seat and passing at one end below the walls and furnaces of the kiln into the main flue con nected therewith and the extension of the fiues in the front walls of the kiln; and Fig. 3 is a view, partly in elevation and partly in section, of the kiln and illustrating the manner of connecting the exhaust means with the main flue.

Referring to the drawings, a represents the floor of an updraft-kiln, and b the Walls sur rounding the same and forming in the present instance in conjunction with the floor a a permanent structure. However, it must be borne in mind that the floor a may also represent a permanent kiln-seat which becomes a kiln by the erection of temporary walls I) thereon, as is the case in scoved or cased-up kilns. From each of the front walls of the kiln extend in the present in stance three furnaces c, the fire-chamber c of which communicates with the interior of the kiln by a main furnace-flue c and two branch flues c and a, forming the continuation of the main flue 0 Although this arrangement of flues has been shown as connecting the fire-chamber of the furnace with the in terior of the kiln, any other known construction of fiues may be employed for this purose.

Opposite and in alinement with the ends of the branchfurnace-fiues c and c in the interior of the kiln are arranged the arches of brick (not shown) which are built in the brick to be burned. In the floor a and between the arches and opposite the benches of brick (not shown) are arranged flues d, which, as shown in Fig. 2, extend to the level of the floor a.

The benches of brick (not shown) are built directly on the floor a, and therefore completely cover the flues (1. As shown in Fig.

2, each of the flues d is downwardly deflected to pass below the walls I) and furnaces c of the kiln, and at its depressed end each of the flues d terminates in a main flue 6, arranged at a right angle to the flues d and below the floor a of the fire-pit a of the kiln. The main flue e may be located at any desired point; but in the present instance the same is shown as being arranged below the floor of the fire-pit a of the kiln.

Above and in alinement with the outlet opening 0 of the main flue is arranged a blower f, driven by any suitable source of power, (not shown,) which by means of a pipe f may be connected, for instance, with a drier in which the heat of the updraft-kiln is utilized to dry brick or other articles placed therein.

Preferably adjacent to the main flue 0 each of the flues d is provided with a damper h, which in the position shown in Fig. 2 closes each flue d and renders the same inoperative either during the burning of the brick in the kiln or any other time it becomes desirable to close the flues. When the flues (Z are closed by the damper h, cold air is prevented from entering the kiln through the floor a, which inflow of cold air would tend to retard and produce an uneven burning of the brick therein.

As shown in Fig. 2, each of the flues d within the kiln extends into the front walls 1) thereof, in which are arranged extensionsd of the flues d, terminating a certain distance from the upper edge of the front walls I). These extensions (1 are also closed by the brick placed in the kiln, and the same, as well as the flues cl and main flue 6, form only an accessory to the kiln and have therefore no function during the burning of the brick therein. When, however, the burning of the brick has been completed, the dampers h are withdrawn from the flues d and at the same time the blower f is set in rotation. The heat remaining and stored in the brick is now exhausted from the same at the bottom through the flues d and at the sides to the uppermost portion of the brick by the extensions d of the flues. In this manner heat is simultaneously drawn from all parts of the burned brick filling the kiln and highly-heated air withdrawn from the kiln, and fresh air sucked through the same and highly heated by being brought in contact with the brick is conducted through the flues (Z and (1 into the main flue e and then forced by the blower f and pipe f to any desired place for utilization. 1,.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said flues arranged below and opposite the benches of brick placed in said kiln and terminating at the level of the floor so as to be formed by the floor and to be covered at theirupper ends by the brick placed on the floor.

2. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said flues arranged below and centrally to the benches of brick placed in the kiln and terminating at the level of the floor so as to be formed by the floor and to be closed at their upper ends by the brick, and a damper arranged in each of said flues and adapted to render the same inoperative, when closing said flues.

3. An updraft-kiln having a floor or kilnseat,-a series of flues arranged therein, flues arranged opposite said floor-flues in the walls of said kiln and forming the continuation thereof, said floor-flues and wall-flues adapted to collect heat from brick placed therein and to conduct the same to the exterior of said kiln.

4. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said flues arranged below and opposite the benches of brick placed in said kiln and terminatin at the level of the floor so as to be formed by the floor and to be closed at their upper ends by the brick, and a main flue communicating with said floor-flues adapted to withdraw lanld collect heat entering said flues from said 5. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said ues arranged below and opposite the benches and intermediate the arches of brick therein, flues arranged in the walls of said kiln and forming the continuation of said floor-flues, and a damper arranged in each of said floorflues adapted to render the same and the wall extensions inoperative, when closing said floor-flues.

6. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said flues arranged below and opposite the benches and intermediate of the arches of brick placed therein, flues extending upwardly from said floor-flues in certain of the walls of said kiln and forming the continuation thereof, said floor-flues and wall extensions adapted to be covered by the brick in said kiln, a damper arranged in each of said floor-flues and adapted to render the same and their wall extensioris inoperative, when closing said floorflues, and'a main flue communicating with said floor-flues and adapted to withdraw and conduct heat entering said flues to a place for utilization.

7. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said flues arranged below and opposite the benches and intermediate of the arches of brick placed therein and terminating in the walls of said kiln, flues extending upwardly from said floor-flues in certain of the walls of said kiln and forming the continuation thereof,

said floor-fines and their Wall extensions adapted to be covered by the brick placed in said kiln, a damper arranged'in each of said fioor-flues and adapted to render the same and their wall extensions inoperative, when closing said floor-fines, a main fiue communicating with said floor-flues and their wall extensions, and exhaust means adapted when actuated to Withdraw the heat of said kiln and the brick therein by said floor-fines and their wall extensions and to collect and force the same out of said main flue.

8. An updraft-kiln having a floor or kilnseat, a series of flues arranged therein, said fines arranged below and opposite the benches and intermediate of the arches of brick placed therein and terminating in the walls of said kiln, flues extending upwardly from said floor-fines in certain of the walls of said kiln and forming the continuation thereof, said floor-flues and their wall extensions adapted to be covered by the brick in said kiln, a damper arranged in each of said floorflues and adapted to render the same and their Wall extensions inoperative, when closing said lines, a main flue communicating with said floor-flues and their wall extensions and exhaust means arranged at the end of said main flue and adapted, when actuated, to Withdraw the heat of said kiln and the brick therein by said floor-flues and their wall extensions and to collect and force the same out of said main flue to a place for utilization;

9. An updraft-kiln having a floor or kilnseat, a series of fiues arranged therein, a main flue communicating with said series of flues and exhaust means adapted to withdraw heat from said kiln and to collect the same by said floor-flues in said main flue and to force the heat collected in said main flue to a place for utilization.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

EDWIN A. KING. Witnesses:

J. WALTER DOUGLASS. THOMAS M. SMITH. 

